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A000889 Number of switching networks (see Harrison reference for precise definition).
(Formerly M1819 N0722)
+0
1
2, 7, 124, 494298 (list; graph; listen)
OFFSET

1,1

REFERENCES

M. A. Harrison, On the number of classes of switching networks, J. Franklin Instit., 276 (1963), 313-327.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Index entries for sequences related to switching networks

CROSSREFS

Sequence in context: A034902 A101429 A070521 this_sequence A041727 A120379 A101799

Adjacent sequences: A000886 A000887 A000888 this_sequence A000890 A000891 A000892

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.


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